Ghost vessels (corneal), left eye

This code describes the presence of ghost vessels in the cornea of the left eye. Ghost vessels are non-perfused, empty blood vessels that remain in the corneal stroma after a period of active corneal neovascularization has regressed. They appear as faint, thread-like structures and indicate a history of corneal inflammation or injury.

Use this code when documentation explicitly states the presence of ghost vessels in the left cornea. This condition is often observed during slit-lamp examination following resolution of conditions such as keratitis, corneal transplant rejection, or chemical burns. The physician's notes should clearly identify these non-perfused vessels.

• Ensure laterality is accurately documented and coded (left eye).
• Do not confuse ghost vessels with active corneal neovascularization (H16.40-H16.49), which indicates active blood flow.
• Code any underlying or causative corneal condition if still present and being treated, sequencing it before this code if it is the primary reason for the encounter.